The AirTAC GFR400C15MLJC2K AirTAC Filter Regulator PT1/2, Low-Pressure is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR400C15MLJC2K is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a 1/2 in PT port, a 40 um standard filter element, a manual drain bowl in polycarbonate, and the low-pressure regulator type for circuits that must run at reduced downstream pressure. It is fitted with an external round gauge scaled in psi and a reverse/check valve, and it is supplied without a mounting bracket. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, G (BSPP) and NPT thread options, a choice of 40 um or 5 um (W) filtration, differential-pressure, automatic or manual drains, gauge scale choices, and an optional mounting bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR400C15MLJC2K AirTAC Filter Regulator PT1/2, Low-Pressure |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Clamp cylinders on a CNC fixture line often need a held, reduced downstream pressure rather than full line pressure. This unit filters the supply to 40 um, regulates it with the low-pressure type, and the check valve helps hold the set point if upstream pressure dips. The round psi gauge lets the setter read the clamp pressure directly.
Sealing arms, pushers and product-hold-downs on a packaging line run best off a clean, regulated air leg. Mounted at the machine drop from a 1/2 in PT main, this filter regulator removes water and particulate before the valves and keeps actuator pressure low and stable, with manual drain for scheduled maintenance rounds.
Bench rigs, spray cabinets and pilot-plant skids frequently need filtered air at a modest, closely watched pressure. The low-pressure regulator type suits reduced-pressure circuits, the 40 um element protects sensitive devices, and the psi-scaled round gauge gives operators a direct reading at the rig.
Size and port step up together: 200 through 600 cover ports from 1/8 in to 1 in, so pick the size whose published flow curve covers your demand at the working pressure - we will check the curve against your application before you order. For this family, choose the drain type: manual (as here) drains only when operated, automatic drains condensate continuously, and the differential-pressure default drains on a pressure drop; manual drain also widens the regulator adjust range where published. Choose the 40 um standard element or the 5 um (W) element for finer protection. Gauge options are the embedded square gauge or an external round gauge, scaled in MPa, psi or bar (this unit: round, psi). Thread is PT as standard; G (BSPP) and NPT are order options. A mounting bracket is optional (this configuration: no bracket), and the K code adds a reverse/check valve.
Flow for GFR units is published as curves, not a single rated number, so we do not quote a rated flow. Send us your line pressure, downstream set point and air demand and we will confirm sizing against the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR family as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Tell us your inlet pressure, downstream set point and air demand, and we will confirm the sizing against the datasheet on request before you order.
The M code in GFR400C15MLJC2K specifies a manual drain: condensate collects in the polycarbonate bowl until an operator opens the drain, rather than bleeding off automatically. It suits installations covered by a maintenance round, and it is one of three drain choices in this family alongside the differential-pressure default and the automatic (A) drain.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.